Paste dispenser and method for controlling the same

Abstract

A paste dispenser and a method for controlling the same are disclosed. The paste dispenser includes a stage having a substrate mounted thereon, at least one nozzle dispensing a paste on the substrate by relative movement between the nozzle and the substrate, a measuring means provided at a position facing into an outlet of the nozzle and directly measuring a position of an exchange nozzle, and a controller converting a compensation value in accordance with a displacement of the exchange nozzle based on data measured by the measuring means.

1 . A method for controlling a paste dispenser, comprising the steps of: compensating a measuring means position; and compensating an exchange nozzle position by using the measuring means without dispensing a paste. 
   
   
       2 . The method according to  claim 1 , wherein the measuring means position compensating step comprises, relatively moving the measuring means to a reference nozzle position, and converting a compensation position of the measuring means by using data measured from the measuring means. 
   
   
       3 . The method according to  claim 1 , wherein the exchange nozzle position compensating step comprises, relatively moving the measuring means to the exchange nozzle position, and converting a compensation position of the exchange nozzle by using data measured from the measuring means. 
   
   
       4 . The method according to  claim 3 , wherein the exchange nozzle compensating step further comprises moving the exchange nozzle to a compensation position.